about different ways to do that maybe involving humor. >> take ben stiller. he gets attention for his foundation, stiller strong, using humor. >> matt damon claimed water. how do you claim water? >> on youtube, 4,000 hits. this video with sarah silverman? >> knock knock. >> who is that knocking at my door? >> viral. damon siz his strong suit is getting people to care. >> because there's a lot of low-hanging fruit so to speak. there are so many people we can help. >> do you see a solution in your lifetime? >> yes, we do in fact, that's why we're here. >> really, really enjoyed talking to him. he says the whole concept of water credit has actually helped a million people so far around the world have affordable access to clean water. a good first step. 880 million more people to go. he believes this concept is really working. helping people get affordable loans to put a toilet in their home, a faucet in their home. again, he says a big challenge is getting people in the western world to wrap their minds around it. something we can't fathom or understand. he is taking this on as his cause
